INTRODUCTION. 
by later workers. In all my works I have definitely designated type 
localities to species and sub-species, in the same way that I have designated 
types of genera. 
I have also, I believe, given the first introduction into literature of 
all those names that have been before considered nude. This does away 
with a possible cause of confusion. 
The advantage of giving the exact day of the month of each 
publication will be appreciated by those who desire accuracy. By this 
means we reach bed rock at once. I have been able to show that a 
number of Gould’s species were first published in his Birds of Australia, 
not hi the Proc. ZooL. Soc. as was thought for many years. 
If the rule be followed that a name which appears in a publication 
that has the date in the year fixed, takes precedence over a name which 
appears in a book with the date not fixed, we must call No. 251 Calypiorhyndm 
magnificus. 
Nos. 386, 521, 523, 535 are duplicated, as is one genus, No. 342. 
GREGORY M. MATHEWS. 
Founts Court, Fair Oak, Hants. 
August 30 thy 1924. 
viii. 
